id:A167192 - OEIS Search Results

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Triangle read by rows: T(n,k) = (n-k)/GCD(n,k), 1<=k<=n.

+0
6

0, 1, 0, 2, 1, 0, 3, 1, 1, 0, 4, 3, 2, 1, 0, 5, 2, 1, 1, 1, 0, 6, 5, 4, 3, 2, 1, 0, 7, 3, 5, 1, 3, 1, 1, 0, 8, 7, 2, 5, 4, 1, 2, 1, 0, 9, 4, 7, 3, 1, 2, 3, 1, 1, 0, 10, 9, 8, 7, 6, 5, 4, 3, 2, 1, 0, 11, 5, 3, 2, 7, 1, 5, 1, 1, 1, 1, 0, 12, 11, 10, 9, 8, 7, 6, 5, 4, 3, 2, 1, 0, 13, 6, 11, 5, 9, 4, 1, 3, 5, 2, 3 (list; table; graph; listen)

	OFFSET	`1,4`
	COMMENT	`T(n,k) = A025581(n,k)/A050873(n,k);` `T(n,1) = A001477(n-1);` `T(n,2) = A026741(n-2) for n>1;` `T(n,3) = A051176(n-3) for n>2;` `T(n,4) = A060819(n-4) for n>4;` `T(n,n-3) = A144437(n) for n>3;` `T(n,n-2) = A000034(n) for n>2;` `T(n,n-1) = A000012(n);` `T(n,n) = A000004(n).`
	CROSSREFS	`A164306, A054531.` `Sequence in context: A071802 A110355 A029293 this_sequence A029312 A143256 A143151` `Adjacent sequences: A167189 A167190 A167191 this_sequence A167193 A167194 A167195`
	KEYWORD	`nonn,tabl,new`
	AUTHOR	`Reinhard Zumkeller (reinhard.zumkeller(AT)gmail.com), Oct 30 2009`

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Last modified November 25 20:09 EST 2009. Contains 167514 sequences.

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